单项选择题
A dry cleaner is having issues with their computer overheating. Which of the following preventive maintenance techniques would be the BEST short-term resolution to the problem?（）
A. Update the firmware on the machine to accommodate for higher temperatures.
B. Use Disk Cleanup and Defrag to keep the machine from working as hard.
C. Use a can of compressed air to clean out blocked ventilation.
D. Relocate the machine to a cooler part of the building.
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